I am not aware of this being a common problem. In fact most that I've replaced have had around 80K to 90K on them. If you are getting an aftermarket pump, you may want to select a different brand or purchase one from the dealer. It may be a little more, but it should last longer.
As far as doing it yourself, it is an involved process and I'm not sure what your abilities are.
Let me know if you have any other questions.
Monday, December 1st, 2008 AT 4:30 PM